[dm-devel] dm: introduce DM_GET_TARGET_VERSION

[Mike Snitzer]

On Mon, Sep 16 2019 at  5:55am -0400,
Mikulas Patocka <mpatocka at redhat.com> wrote:

> This patch introduces a new ioctl DM_GET_TARGET_VERSION. It will load a
> target that is specified in the "name" entry in the parameter structure
> and return its version.
> 
> This functionality is intended to be used by cryptsetup, so that it can
> query kernel capabilities before activating the device.
> 
> Signed-off-by: Mikulas Patocka <mpatocka at redhat.com>

I've picked this up for 5.4, last change now that merge window is open,
thanks.

Mike